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cheat/vendor/github.com/alecthomas/chroma/lexers/r/ruby.go
Chris Lane 55b18b4897 Squashed commit of the following: 
commit 95479c8ad744db48386a5c78e54ef8da80e9120b
Author: Chris Lane <chris@chris-allen-lane.com>
Date:   Wed Apr 28 12:26:32 2021 -0400

    chore(version): bump version to 4.2.1

commit 6956f51cae
Author: Chris Lane <chris@chris-allen-lane.com>
Date:   Wed Apr 28 12:24:21 2021 -0400

    fix(Makefile): `vendor-update`

    Update the `vendor-update` build target to run `go mod vendor` after
    updating dependencies.

commit 0aca411279
Author: Chris Lane <chris@chris-allen-lane.com>
Date:   Wed Apr 28 12:23:24 2021 -0400

    chore(deps): update dependencies

commit e847956b02
Author: Chris Lane <chris@chris-allen-lane.com>
Date:   Wed Apr 28 08:26:51 2021 -0400

    chore(deps): build updates

    - Upgrade `go` to `1.16.3`

    - Attempt to fix build errors regarding dependencies
2021-04-28 12:35:32 -04:00

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package r
import (
. "github.com/alecthomas/chroma" // nolint
"github.com/alecthomas/chroma/lexers/internal"
)
// Ruby lexer.
var Ruby = internal.Register(MustNewLazyLexer(
&Config{
Name: "Ruby",
Aliases: []string{"rb", "ruby", "duby"},
Filenames: []string{"*.rb", "*.rbw", "Rakefile", "*.rake", "*.gemspec", "*.rbx", "*.duby", "Gemfile"},
MimeTypes: []string{"text/x-ruby", "application/x-ruby"},
DotAll: true,
},
rubyRules,
))
func rubyRules() Rules {
return Rules{
"root": {
{`\A#!.+?$`, CommentHashbang, nil},
{`#.*?$`, CommentSingle, nil},
{`=begin\s.*?\n=end.*?$`, CommentMultiline, nil},
{Words(``, `\b`, `BEGIN`, `END`, `alias`, `begin`, `break`, `case`, `defined?`, `do`, `else`, `elsif`, `end`, `ensure`, `for`, `if`, `in`, `next`, `redo`, `rescue`, `raise`, `retry`, `return`, `super`, `then`, `undef`, `unless`, `until`, `when`, `while`, `yield`), Keyword, nil},
{`(module)(\s+)([a-zA-Z_]\w*(?:::[a-zA-Z_]\w*)*)`, ByGroups(Keyword, Text, NameNamespace), nil},
{`(def)(\s+)`, ByGroups(Keyword, Text), Push("funcname")},
{"def(?=[*%&^`~+-/\\[<>=])", Keyword, Push("funcname")},
{`(class)(\s+)`, ByGroups(Keyword, Text), Push("classname")},
{Words(``, `\b`, `initialize`, `new`, `loop`, `include`, `extend`, `raise`, `attr_reader`, `attr_writer`, `attr_accessor`, `attr`, `catch`, `throw`, `private`, `module_function`, `public`, `protected`, `true`, `false`, `nil`), KeywordPseudo, nil},
{`(not|and|or)\b`, OperatorWord, nil},
{Words(``, `\?`, `autoload`, `block_given`, `const_defined`, `eql`, `equal`, `frozen`, `include`, `instance_of`, `is_a`, `iterator`, `kind_of`, `method_defined`, `nil`, `private_method_defined`, `protected_method_defined`, `public_method_defined`, `respond_to`, `tainted`), NameBuiltin, nil},
{`(chomp|chop|exit|gsub|sub)!`, NameBuiltin, nil},
{Words(`(?<!\.)`, `\b`, `Array`, `Float`, `Integer`, `String`, `__id__`, `__send__`, `abort`, `ancestors`, `at_exit`, `autoload`, `binding`, `callcc`, `caller`, `catch`, `chomp`, `chop`, `class_eval`, `class_variables`, `clone`, `const_defined?`, `const_get`, `const_missing`, `const_set`, `constants`, `display`, `dup`, `eval`, `exec`, `exit`, `extend`, `fail`, `fork`, `format`, `freeze`, `getc`, `gets`, `global_variables`, `gsub`, `hash`, `id`, `included_modules`, `inspect`, `instance_eval`, `instance_method`, `instance_methods`, `instance_variable_get`, `instance_variable_set`, `instance_variables`, `lambda`, `load`, `local_variables`, `loop`, `method`, `method_missing`, `methods`, `module_eval`, `name`, `object_id`, `open`, `p`, `print`, `printf`, `private_class_method`, `private_instance_methods`, `private_methods`, `proc`, `protected_instance_methods`, `protected_methods`, `public_class_method`, `public_instance_methods`, `public_methods`, `putc`, `puts`, `raise`, `rand`, `readline`, `readlines`, `require`, `scan`, `select`, `self`, `send`, `set_trace_func`, `singleton_methods`, `sleep`, `split`, `sprintf`, `srand`, `sub`, `syscall`, `system`, `taint`, `test`, `throw`, `to_a`, `to_s`, `trace_var`, `trap`, `untaint`, `untrace_var`, `warn`), NameBuiltin, nil},
{`__(FILE|LINE)__\b`, NameBuiltinPseudo, nil},
{"(?<!\\w)(<<-?)([\"`\\']?)([a-zA-Z_]\\w*)(\\2)(.*?\\n)", String, nil},
{`(<<-?)("|\')()(\2)(.*?\n)`, String, nil},
{`__END__`, CommentPreproc, Push("end-part")},
{`(?:^|(?<=[=<>~!:])|(?<=(?:\s|;)when\s)|(?<=(?:\s|;)or\s)|(?<=(?:\s|;)and\s)|(?<=\.index\s)|(?<=\.scan\s)|(?<=\.sub\s)|(?<=\.sub!\s)|(?<=\.gsub\s)|(?<=\.gsub!\s)|(?<=\.match\s)|(?<=(?:\s|;)if\s)|(?<=(?:\s|;)elsif\s)|(?<=^when\s)|(?<=^index\s)|(?<=^scan\s)|(?<=^sub\s)|(?<=^gsub\s)|(?<=^sub!\s)|(?<=^gsub!\s)|(?<=^match\s)|(?<=^if\s)|(?<=^elsif\s))(\s*)(/)`, ByGroups(Text, LiteralStringRegex), Push("multiline-regex")},
{`(?<=\(|,|\[)/`, LiteralStringRegex, Push("multiline-regex")},
{`(\s+)(/)(?![\s=])`, ByGroups(Text, LiteralStringRegex), Push("multiline-regex")},
{`(0_?[0-7]+(?:_[0-7]+)*)(\s*)([/?])?`, ByGroups(LiteralNumberOct, Text, Operator), nil},
{`(0x[0-9A-Fa-f]+(?:_[0-9A-Fa-f]+)*)(\s*)([/?])?`, ByGroups(LiteralNumberHex, Text, Operator), nil},
{`(0b[01]+(?:_[01]+)*)(\s*)([/?])?`, ByGroups(LiteralNumberBin, Text, Operator), nil},
{`([\d]+(?:[_e]\d+)*)(\s*)([/?])?`, ByGroups(LiteralNumberInteger, Text, Operator), nil},
{`@@[a-zA-Z_]\w*`, NameVariableClass, nil},
{`@[a-zA-Z_]\w*`, NameVariableInstance, nil},
{`\$\w+`, NameVariableGlobal, nil},
{"\\$[!@&`\\'+~=/\\\\,;.<>_*$?:\"^-]", NameVariableGlobal, nil},
{`\$-[0adFiIlpvw]`, NameVariableGlobal, nil},
{`::`, Operator, nil},
Include("strings"),
{`\?(\\[MC]-)*(\\([\\abefnrstv#"\']|x[a-fA-F0-9]{1,2}|[0-7]{1,3})|\S)(?!\w)`, LiteralStringChar, nil},
{`[A-Z]\w+`, NameConstant, nil},
{Words(`(\.|::)`, ``, `*`, `**`, `-`, `+`, `-@`, `+@`, `/`, `%`, `&`, `|`, `^`, "`", `~`, `[]`, `[]=`, `<<`, `>>`, `<`, `<>`, `<=>`, `>`, `>=`, `==`, `===`), ByGroups(Operator, NameOperator), nil},
{"(\\.|::)([a-zA-Z_]\\w*[!?]?|[*%&^`~+\\-/\\[<>=])", ByGroups(Operator, Name), nil},
{`[a-zA-Z_]\w*[!?]?`, Name, nil},
{`(\[|\]|\*\*|<<?|>>?|>=|<=|<=>|=~|={3}|!~|&&?|\|\||\.{1,3})`, Operator, nil},
{`[-+/*%=<>&!^|~]=?`, Operator, nil},
{`[(){};,/?:\\]`, Punctuation, nil},
{`\s+`, Text, nil},
},
"funcname": {
{`\(`, Punctuation, Push("defexpr")},
{"(?:([a-zA-Z_]\\w*)(\\.))?([a-zA-Z_]\\w*[!?]?|\\*\\*?|[-+]@?|[/%&|^`~]|\\[\\]=?|<<|>>|<=?>|>=?|===?)", ByGroups(NameClass, Operator, NameFunction), Pop(1)},
Default(Pop(1)),
},
"classname": {
{`\(`, Punctuation, Push("defexpr")},
{`<<`, Operator, Pop(1)},
{`[A-Z_]\w*`, NameClass, Pop(1)},
Default(Pop(1)),
},
"defexpr": {
{`(\))(\.|::)?`, ByGroups(Punctuation, Operator), Pop(1)},
{`\(`, Operator, Push()},
Include("root"),
},
"in-intp": {
{`\{`, LiteralStringInterpol, Push()},
{`\}`, LiteralStringInterpol, Pop(1)},
Include("root"),
},
"string-intp": {
{`#\{`, LiteralStringInterpol, Push("in-intp")},
{`#@@?[a-zA-Z_]\w*`, LiteralStringInterpol, nil},
{`#\$[a-zA-Z_]\w*`, LiteralStringInterpol, nil},
},
"string-intp-escaped": {
Include("string-intp"),
{`\\([\\abefnrstv#"\']|x[a-fA-F0-9]{1,2}|[0-7]{1,3})`, LiteralStringEscape, nil},
},
"interpolated-regex": {
Include("string-intp"),
{`[\\#]`, LiteralStringRegex, nil},
{`[^\\#]+`, LiteralStringRegex, nil},
},
"interpolated-string": {
Include("string-intp"),
{`[\\#]`, LiteralStringOther, nil},
{`[^\\#]+`, LiteralStringOther, nil},
},
"multiline-regex": {
Include("string-intp"),
{`\\\\`, LiteralStringRegex, nil},
{`\\/`, LiteralStringRegex, nil},
{`[\\#]`, LiteralStringRegex, nil},
{`[^\\/#]+`, LiteralStringRegex, nil},
{`/[mixounse]*`, LiteralStringRegex, Pop(1)},
},
"end-part": {
{`.+`, CommentPreproc, Pop(1)},
},
"strings": {
{`\:@{0,2}[a-zA-Z_]\w*[!?]?`, LiteralStringSymbol, nil},
{Words(`\:@{0,2}`, ``, `*`, `**`, `-`, `+`, `-@`, `+@`, `/`, `%`, `&`, `|`, `^`, "`", `~`, `[]`, `[]=`, `<<`, `>>`, `<`, `<>`, `<=>`, `>`, `>=`, `==`, `===`), LiteralStringSymbol, nil},
{`:'(\\\\|\\'|[^'])*'`, LiteralStringSymbol, nil},
{`'(\\\\|\\'|[^'])*'`, LiteralStringSingle, nil},
{`:"`, LiteralStringSymbol, Push("simple-sym")},
{`([a-zA-Z_]\w*)(:)(?!:)`, ByGroups(LiteralStringSymbol, Punctuation), nil},
{`"`, LiteralStringDouble, Push("simple-string")},
{"(?<!\\.)`", LiteralStringBacktick, Push("simple-backtick")},
{`%[QWx]?\{`, LiteralStringOther, Push("cb-intp-string")},
{`%[qsw]\{`, LiteralStringOther, Push("cb-string")},
{`%r\{`, LiteralStringRegex, Push("cb-regex")},
{`%[QWx]?\[`, LiteralStringOther, Push("sb-intp-string")},
{`%[qsw]\[`, LiteralStringOther, Push("sb-string")},
{`%r\[`, LiteralStringRegex, Push("sb-regex")},
{`%[QWx]?\(`, LiteralStringOther, Push("pa-intp-string")},
{`%[qsw]\(`, LiteralStringOther, Push("pa-string")},
{`%r\(`, LiteralStringRegex, Push("pa-regex")},
{`%[QWx]?<`, LiteralStringOther, Push("ab-intp-string")},
{`%[qsw]<`, LiteralStringOther, Push("ab-string")},
{`%r<`, LiteralStringRegex, Push("ab-regex")},
{`(%r([\W_]))((?:\\\2|(?!\2).)*)(\2[mixounse]*)`, String, nil},
{`%[qsw]([\W_])((?:\\\1|(?!\1).)*)\1`, LiteralStringOther, nil},
{`(%[QWx]([\W_]))((?:\\\2|(?!\2).)*)(\2)`, String, nil},
{`(?<=[-+/*%=<>&!^|~,(])(\s*)(%([\t ])(?:(?:\\\3|(?!\3).)*)\3)`, ByGroups(Text, LiteralStringOther, None), nil},
{`^(\s*)(%([\t ])(?:(?:\\\3|(?!\3).)*)\3)`, ByGroups(Text, LiteralStringOther, None), nil},
{`(%([^a-zA-Z0-9\s]))((?:\\\2|(?!\2).)*)(\2)`, String, nil},
},
"simple-string": {
Include("string-intp-escaped"),
{`[^\\"#]+`, LiteralStringDouble, nil},
{`[\\#]`, LiteralStringDouble, nil},
{`"`, LiteralStringDouble, Pop(1)},
},
"simple-sym": {
Include("string-intp-escaped"),
{`[^\\"#]+`, LiteralStringSymbol, nil},
{`[\\#]`, LiteralStringSymbol, nil},
{`"`, LiteralStringSymbol, Pop(1)},
},
"simple-backtick": {
Include("string-intp-escaped"),
{"[^\\\\`#]+", LiteralStringBacktick, nil},
{`[\\#]`, LiteralStringBacktick, nil},
{"`", LiteralStringBacktick, Pop(1)},
},
"cb-intp-string": {
{`\\[\\{}]`, LiteralStringOther, nil},
{`\{`, LiteralStringOther, Push()},
{`\}`, LiteralStringOther, Pop(1)},
Include("string-intp-escaped"),
{`[\\#{}]`, LiteralStringOther, nil},
{`[^\\#{}]+`, LiteralStringOther, nil},
},
"cb-string": {
{`\\[\\{}]`, LiteralStringOther, nil},
{`\{`, LiteralStringOther, Push()},
{`\}`, LiteralStringOther, Pop(1)},
{`[\\#{}]`, LiteralStringOther, nil},
{`[^\\#{}]+`, LiteralStringOther, nil},
},
"cb-regex": {
{`\\[\\{}]`, LiteralStringRegex, nil},
{`\{`, LiteralStringRegex, Push()},
{`\}[mixounse]*`, LiteralStringRegex, Pop(1)},
Include("string-intp"),
{`[\\#{}]`, LiteralStringRegex, nil},
{`[^\\#{}]+`, LiteralStringRegex, nil},
},
"sb-intp-string": {
{`\\[\\\[\]]`, LiteralStringOther, nil},
{`\[`, LiteralStringOther, Push()},
{`\]`, LiteralStringOther, Pop(1)},
Include("string-intp-escaped"),
{`[\\#\[\]]`, LiteralStringOther, nil},
{`[^\\#\[\]]+`, LiteralStringOther, nil},
},
"sb-string": {
{`\\[\\\[\]]`, LiteralStringOther, nil},
{`\[`, LiteralStringOther, Push()},
{`\]`, LiteralStringOther, Pop(1)},
{`[\\#\[\]]`, LiteralStringOther, nil},
{`[^\\#\[\]]+`, LiteralStringOther, nil},
},
"sb-regex": {
{`\\[\\\[\]]`, LiteralStringRegex, nil},
{`\[`, LiteralStringRegex, Push()},
{`\][mixounse]*`, LiteralStringRegex, Pop(1)},
Include("string-intp"),
{`[\\#\[\]]`, LiteralStringRegex, nil},
{`[^\\#\[\]]+`, LiteralStringRegex, nil},
},
"pa-intp-string": {
{`\\[\\()]`, LiteralStringOther, nil},
{`\(`, LiteralStringOther, Push()},
{`\)`, LiteralStringOther, Pop(1)},
Include("string-intp-escaped"),
{`[\\#()]`, LiteralStringOther, nil},
{`[^\\#()]+`, LiteralStringOther, nil},
},
"pa-string": {
{`\\[\\()]`, LiteralStringOther, nil},
{`\(`, LiteralStringOther, Push()},
{`\)`, LiteralStringOther, Pop(1)},
{`[\\#()]`, LiteralStringOther, nil},
{`[^\\#()]+`, LiteralStringOther, nil},
},
"pa-regex": {
{`\\[\\()]`, LiteralStringRegex, nil},
{`\(`, LiteralStringRegex, Push()},
{`\)[mixounse]*`, LiteralStringRegex, Pop(1)},
Include("string-intp"),
{`[\\#()]`, LiteralStringRegex, nil},
{`[^\\#()]+`, LiteralStringRegex, nil},
},
"ab-intp-string": {
{`\\[\\<>]`, LiteralStringOther, nil},
{`<`, LiteralStringOther, Push()},
{`>`, LiteralStringOther, Pop(1)},
Include("string-intp-escaped"),
{`[\\#<>]`, LiteralStringOther, nil},
{`[^\\#<>]+`, LiteralStringOther, nil},
},
"ab-string": {
{`\\[\\<>]`, LiteralStringOther, nil},
{`<`, LiteralStringOther, Push()},
{`>`, LiteralStringOther, Pop(1)},
{`[\\#<>]`, LiteralStringOther, nil},
{`[^\\#<>]+`, LiteralStringOther, nil},
},
"ab-regex": {
{`\\[\\<>]`, LiteralStringRegex, nil},
{`<`, LiteralStringRegex, Push()},
{`>[mixounse]*`, LiteralStringRegex, Pop(1)},
Include("string-intp"),
{`[\\#<>]`, LiteralStringRegex, nil},
{`[^\\#<>]+`, LiteralStringRegex, nil},
},
}
}
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